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American beech
Fagus grandifolia
9,501 observations
paper birch
Betula papyrifera
7,701 observations
northern red oak
Quercus rubra
7,464 observations
eastern black walnut
Juglans nigra
7,017 observations
Butternut
Juglans cinerea
5,103 observations
bur oak
Quercus macrocarpa
4,541 observations
American hophornbeam
Ostrya virginiana
4,362 observations
yellow birch
Betula alleghaniensis
4,143 observations
bitternut hickory
Carya cordiformis
3,278 observations
beaked hazelnut
Corylus cornuta
3,154 observations
sweetfern
Comptonia peregrina
2,962 observations
bog myrtle
Myrica gale
2,818 observations
shagbark hickory
Carya ovata
2,610 observations
white oak
Quercus alba
2,537 observations
grey alder
Alnus incana
2,316 observations
American hornbeam
Carpinus caroliniana
1,964 observations
black oak
Quercus velutina
994 observations
chinkapin oak
Quercus muehlenbergii
779 observations
green alder
Alnus alnobetula
722 observations
common alder
Alnus glutinosa
713 observations
American chestnut
Castanea dentata
667 observations
American hazelnut
Corylus americana
547 observations
swamp white oak
Quercus bicolor
474 observations
swamp birch
Betula pumila
472 observations
English oak
Quercus robur
296 observations
gray birch
Betula populifolia
294 observations
pin oak
Quercus palustris
291 observations
dwarf chinkapin oak
Quercus prinoides
271 observations
pignut hickory
Carya glabra
251 observations
northern pin oak
Quercus ellipsoidalis
212 observations
silver birch
Betula pendula
210 observations
bear oak
Quercus ilicifolia
164 observations
Shellbark Hickory
Carya laciniosa
73 observations
heartleaf paper birch
Betula cordifolia
73 observations
European beech
Fagus sylvatica
52 observations
smooth alder
Alnus serrulata
49 observations
Persian walnut
Juglans regia
41 observations
red hickory
Carya ovalis
34 observations
Shumard oak
Quercus shumardii
27 observations
northern bayberry
Morella pensylvanica
25 observations
dwarf resin birch
Betula glandulosa
24 observations
shingle oak
Quercus imbricaria
24 observations
Chinese chestnut
Castanea mollissima
22 observations
river birch
Betula nigra
20 observations
Bebb's Oak
Quercus Γ bebbiana
15 observations
Bixby's walnut
Juglans Γ bixbyi
12 observations
Schuette's oak
Quercus Γ schuettei
11 observations
Japanese walnut
Juglans ailantifolia
8 observations
Alaska Paper Birch
Betula neoalaskana
8 observations
Deam's Oak
Quercus Γ deamii
8 observations
Frequently Asked Questions
- The 10 most common deciduous trees in Ontario are:
- American beech (Fagus grandifolia)
- paper birch (Betula papyrifera)
- northern red oak (Quercus rubra)
- eastern black walnut (Juglans nigra)
- Butternut (Juglans cinerea)
- bur oak (Quercus macrocarpa)
- American hophornbeam (Ostrya virginiana)
- yellow birch (Betula alleghaniensis)
- bitternut hickory (Carya cordiformis)
- beaked hazelnut (Corylus cornuta)
- The most observed deciduous tree in Ontario is American beech (Fagus grandifolia), with 9,501 recorded observations.